# SOX9: a novel janus-faced regulator in immunity and its promise as a therapeutic target

## TL;DR

SOX9 is a dual-function protein that can both hinder immunity in cancer and support tissue repair, making it a potential target for new therapies.

## Contribution

The paper introduces SOX9 as a novel dual-function regulator in immunity and highlights its therapeutic potential in cancer and inflammatory diseases.

## Key findings

- SOX9 promotes tumor immune escape by impairing immune cell function.
- SOX9 supports tissue repair by maintaining macrophage function and aiding cartilage formation.
- SOX9's dual role positions it as a promising therapeutic target for cancer and immune-related diseases.

## Abstract

The Sex-determining Region Y-related High-Mobility Group Box 9 (SOX9), a key transcription factor in the SOX family, plays essential roles in various biological processes, particularly in the development of the tumor microenvironment and the repair of inflamed tissues.

This review elucidates the structure of SOX9 and its relationship with immune components from an immunological perspective, it analyzes the mechanisms by which SOX9 operates in tumor immune escape, inflammatory diseases and tissue repair (such as in osteoarthritis, OA), Furthermore, it introduces a novel immunological perspective by investigating the therapeutic potential and application strategies of SOX9 for treating tumors and inflammatory diseases. and reviews the latest advances in SOX9-related treatments.

SOX9 plays a complex and dual role in immunology, acting as a “double-edged sword”. On one hand, it promotes immune escape by impairing immune cell function, making it a potential therapeutic target in cancer. On the other hand, increased levels of SOX9 help maintain macrophage function, contributing to cartilage formation, tissue regeneration, and repair. Given its significant role in immunobiology, SOX9 represents a promising therapeutic candidate for cancer and immune-related diseases.